From: Sean Christopherson <seanjc@google.com>
To: Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
"Jethro Beekman" <jethro@fortanix.com>,
"Alexander Potapenko" <glider@google.com>,
"Carlos López" <clopez@suse.de>
Subject: [PATCH 01/21] KVM: selftests: Remove duplicate LAUNCH_UPDATE_VMSA call in SEV-ES migrate test
Date: Tue, 10 Mar 2026 16:48:09 -0700 [thread overview]
Message-ID: <20260310234829.2608037-2-seanjc@google.com> (raw)
In-Reply-To: <20260310234829.2608037-1-seanjc@google.com>
Drop the explicit KVM_SEV_LAUNCH_UPDATE_VMSA call when creating an SEV-ES
VM in the SEV migration test, as sev_vm_create() automatically updates the
VMSA pages for SEV-ES guests. The only reason the duplicate call doesn't
cause visible problems is because the test doesn't actually try to run the
vCPUs. That will change when KVM adds a check to prevent userspace from
re-launching a VMSA (which corrupts the VMSA page due to KVM writing
encrypted private memory).
Fixes: 69f8e15ab61f ("KVM: selftests: Use the SEV library APIs in the intra-host migration test")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
tools/testing/selftests/kvm/x86/sev_migrate_tests.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/tools/testing/selftests/kvm/x86/sev_migrate_tests.c b/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
index 0a6dfba3905b..6b0928e69051 100644
--- a/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
+++ b/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
@@ -36,8 +36,6 @@ static struct kvm_vm *sev_vm_create(bool es)
sev_vm_launch(vm, es ? SEV_POLICY_ES : 0);
- if (es)
- vm_sev_ioctl(vm, KVM_SEV_LAUNCH_UPDATE_VMSA, NULL);
return vm;
}
--
2.53.0.473.g4a7958ca14-goog
next prev parent reply other threads:[~2026-03-10 23:48 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-10 23:48 [PATCH 00/21] Fixes and lock cleanup+hardening Sean Christopherson
2026-03-10 23:48 ` Sean Christopherson [this message]
2026-03-10 23:48 ` [PATCH 02/21] KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU Sean Christopherson
2026-03-10 23:48 ` [PATCH 03/21] KVM: SEV: Protect *all* of sev_mem_enc_register_region() with kvm->lock Sean Christopherson
2026-03-10 23:48 ` [PATCH 04/21] KVM: SEV: Disallow LAUNCH_FINISH if vCPUs are actively being created Sean Christopherson
2026-03-10 23:48 ` [PATCH 05/21] KVM: SEV: Lock all vCPUs when synchronzing VMSAs for SNP launch finish Sean Christopherson
2026-04-08 14:07 ` Aithal, Srikanth
2026-04-08 18:42 ` Sean Christopherson
2026-04-09 5:12 ` Aithal, Srikanth
2026-03-10 23:48 ` [PATCH 06/21] KVM: SEV: Lock all vCPUs for the duration of SEV-ES VMSA synchronization Sean Christopherson
2026-03-10 23:48 ` [PATCH 07/21] KVM: SEV: Provide vCPU-scoped accessors for detecting SEV+ guests Sean Christopherson
2026-03-10 23:48 ` [PATCH 08/21] KVM: SEV: Add quad-underscore version of VM-scoped APIs to detect " Sean Christopherson
2026-03-10 23:48 ` [PATCH 09/21] KVM: SEV: Document the SEV-ES check when querying SMM support as "safe" Sean Christopherson
2026-03-10 23:48 ` [PATCH 10/21] KVM: SEV: Move standard VM-scoped helpers to detect SEV+ guests to sev.c Sean Christopherson
2026-03-17 10:33 ` Alexander Potapenko
2026-03-31 18:42 ` Sean Christopherson
2026-03-10 23:48 ` [PATCH 11/21] KVM: SEV: Move SEV-specific VM initialization " Sean Christopherson
2026-03-10 23:48 ` [PATCH 12/21] KVM: SEV: WARN on unhandled VM type when initializing VM Sean Christopherson
2026-04-09 5:12 ` Yan Zhao
2026-04-09 18:48 ` Sean Christopherson
2026-04-10 7:46 ` Yan Zhao
2026-04-10 15:49 ` Sean Christopherson
2026-03-10 23:48 ` [PATCH 13/21] KVM: SEV: Hide "struct kvm_sev_info" behind CONFIG_KVM_AMD_SEV=y Sean Christopherson
2026-03-10 23:48 ` [PATCH 14/21] KVM: SEV: Document that checking for SEV+ guests when reclaiming memory is "safe" Sean Christopherson
2026-03-10 23:48 ` [PATCH 15/21] KVM: SEV: Assert that kvm->lock is held when querying SEV+ support Sean Christopherson
2026-03-10 23:48 ` [PATCH 16/21] KVM: SEV: use mutex guard in snp_launch_update() Sean Christopherson
2026-03-10 23:48 ` [PATCH 17/21] KVM: SEV: use mutex guard in sev_mem_enc_ioctl() Sean Christopherson
2026-03-10 23:48 ` [PATCH 18/21] KVM: SEV: use mutex guard in sev_mem_enc_unregister_region() Sean Christopherson
2026-03-10 23:48 ` [PATCH 19/21] KVM: SEV: use mutex guard in snp_handle_guest_req() Sean Christopherson
2026-03-10 23:48 ` [PATCH 20/21] KVM: SVM: Move lock-protected allocation of SEV ASID into a separate helper Sean Christopherson
2026-03-10 23:48 ` [PATCH 21/21] KVM: SEV: Goto an existing error label if charging misc_cg for an ASID fails Sean Christopherson
2026-03-11 14:29 ` [PATCH 00/21] Fixes and lock cleanup+hardening Jethro Beekman
2026-03-12 16:03 ` Sean Christopherson
2026-04-08 0:14 ` Sean Christopherson
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